Thanks again for the kind comments, everyone. A few answers to questions:
McGraw-Edison - yes! SQ was under the watchful eye of McGraw-Edison during the era of this set, in fact they owned Speed Queen from around 1957 till around 1979.
Does this mean each cycle had one set wash time? - yes, in theory. The wash cycle should have 10 increments of 60 seconds each for the Regular cycle, with the overflow taking place during the last increment of wash. The Durable Press and Soak cycles share a 3 increment wash period, with the Durable Press cycle getting another 3 increments in after the first "dilution" period of overflow and fill during spin.
Summer of Love - Christina I was hoping someone would catch it, and so glad it was you!
SQ and Timers - yes, this particular model does have a Mallory timer in it. Sometimes, but not always, SQ and Maytag even would append a suffix at the end of the timer PN with a -1, -2, or -3, indicating MFG of the replacement timer. The PN stamped on the timer is 23022-1, which may indicate a standard Mallory timer per SQ's timer hierarchy. Kingston was also used well through the 70's on the solid tub washers, and by the early 70's the ratchet type advancements on the Mallory versions were replaced with the tension spring escapement, usually found on timers marked M300. Panthera, it's a bummer the flow washers are no longer regulating the pressure properly. They often overflow for several seconds even when new. Oh hey, I finally found a printed reference in some SQ documentation to your washer - is it a model MA69F?
Is this standard or large capacity? Standard capacity, used on SQ from the beginning all through the 70's. The large capacity tubs were introduced on the DA reversing motor series starting in the early 70's.
replacing the fluorescent lights with LEDs? The thought had not crossed my mind. If I could get a higher output I'd consider it. Will need to check the length as I suspect it isn't standard.
Extra Fill is to get a full fill if the supply pressure is low. Glenn, it's a shame the sales rep didn't walk your aunt through the "Sure-Fill" models that used a pressure switch in line with an auxiliary overflow tank to dial in the load size, very similar to GM Frigidaire of the late 60's. I do like how the rep responded with, "it's supposed to do that."
Ben